If all goes accordingly, Johnson will play a character named Roadblock.

Who is Roadblock you ask, as I did? Per Wikipedia, he is one of the most prominent African-Americans in the series, whose primary duty is as a heavy machine gunner; he's also a cook, and cousin to Heavy Duty, who was played by Adewale Akinnuoye-Agbaje in the first GI Joe movie in 2009. So, I suppose that means Heavy Duty won't be in the sequel? Can't have too many "colored" folks in one GI Joe movie, right?